PROGEF 546 Pro PP-H Ball Valve with Backing Flanges d75-d110 PN10

  Datasheet (PDF)

The Georg Fischer PROGEF Standard Type 546 Pro PP-H ball valve is an industrial flow-control valve engineered for demanding chemical distribution, industrial water treatment, and process piping systems. Supplied across Europe by BigWeld as an authorised Georg Fischer distributor, this high-integrity valve covers metric pipe dimensions d75, d90, and d110. Factory-fitted with robust polypropylene-steel backing flanges, it delivers reliable bi-directional shut-off rated for PN10 at 20 degrees C with a 25-year design service life.

Technical specifications

The Type 546 Pro incorporates an advanced mechanical design ensuring bubble-tight isolation and safe industrial operation under severe cyclic conditions. Its internal geometry minimizes pressure drops while protecting operating personnel and peripheral equipment.

• Pressure rating: Nominal operating pressure PN10 (10 bar) at a reference temperature of 20 degrees C.
• Tightness standards: Bi-directional bubble-tight shut-off tested in accordance with ISO 9393-2 and EN 12266 leak rate A.
• Union architecture: True double union construction with buttress threads to withstand hydraulic shock and thermal expansion.
• Stem safety: Reverse-installed blowout-proof stem featuring an engineered predetermined breaking point to prevent external fluid release.
• Actuation and security: Ergonomic hand lever with an integrated locking mechanism to secure open or closed positions.

Materials and standards

Manufactured from premium isotactic beta-polypropylene homopolymer (β-PP-H), the valve body provides exceptional long-term hydrostatic strength and chemical resistance against corrosive acids, alkalis, and industrial effluents.

The internal ball seats are machined from low-friction pure PTFE, backed by elastomeric O-rings available in either EPDM or FKM to maintain consistent operating torque across fluctuating process temperatures. The factory-assembled backing flanges are fabricated from glass-fibre reinforced polypropylene with steel inserts (PP-Steel), drilled to metric ISO PN10/PN16 bolt patterns. This metallurgical reinforcement prevents flange warping under bolt torque, maintaining uniform sealing compression across the entire joint interface.

Installation and jointing

The integrated flanged design streamlines installation into industrial pipework while facilitating rapid servicing and plant retrofits without pipeline dismantling.

Base-integrated stainless steel threaded inserts allow direct and secure mounting onto brackets or pipe support systems, eliminating bending moments and stress transfer to adjacent plastic pipe runs. Furthermore, the Type 546 Pro retains exact face-to-face Z-dimension compatibility with previous generation Georg Fischer Type 546 valves, enabling one-to-one replacements during maintenance shutdowns. The standardized upper interface accepts direct mounting of pneumatic or electric actuators without disassembling the valve body, providing a seamless upgrade path toward automated process control.